stallman



(No Model.) 2 Sheets-Sheet; 1.

G. H. STALLMAN.

MEAT CUTTER.

No. 365,206. Patented June 21,1887.

1, H Z jz A (No Model.) 2 Sheets--Sheet 2.

G. H. STALLMAN.

MEAT CUTTER.

No. 365,206. Patented June 21, 1887.

GRANVILLE II. STALLMAN, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO MAXIMILIAN SIEREVELD, OF SAME PLACE.

MEAT-=CUTTER.

SPECIFICATION forming part of Letters Patent No. 365,206 dated June 21, 1887.

Application filed June 18, 1886. Serial No. 205536. (No model.)

To aZZ whom it may concern.-

Be it known that I, GRANVILLE H. STALL MAN, of Cincinnati, I-Iamilton county, and State of Ohio, have invented certain new and useful Improvements in Meat-Cutters,of which the following is a specification.

The several features of my invention and the advantages arising from their use, conjointly or otherwise, will be apparent from the following specification.

In the drawings, Figure 1 is a vertical central section of my machine. Fig. 2 is a top view of the machine. Fig. 3 is an elevation of the left-hand end of the machine as shown in Fig. 1. Fig. 4 shows the series of cutters usedin the machine. Fig. 5 is a sectional elevation illustrating the means of attachment of the cutters to the shaft.

The machine is mounted on any convenient form of support, A. A hollow column, B, is provided with an annular flange, I), which supports a plate, C. This plate 0 is slipped over the column B and rests upon the flange f). The block D rests on the screws 0, which are screwed through the plate 0 and are used to adjust the block. A rim, (Z, surrounds the block and projects above its upper surface. The upper surface of the block is flat. The under side of the plate 0 is provided with the annular beveled rack C, which meshes with the beveled pinion E, mounted on the shaft 0. The shaft 0 passes through the column B and 1 s journaled on the opposite side. The bearing A forms the other support for the shaft 0. The shaft 0 derives its motion from the pulley E.

The cutters are mounted on the shafts F F,

journaled, respectively, in the standardsG and G. The inner ends of these shafts are supported in bearings on the top of the column B. These shafts are parallel to thctop surface of the block D. Theshaft F is operated by the driving-pulley II. The inner end of each shaft F F is provided with a collar, f, which rests in grooves in the box I. The shaft 0 has inside the column B a cylindrical cam, J, mounted on it. This cam has an oblique groove, j, cut around it. The lever K is fulcrnmed on a rod passing through the column I}, and has its upper end fitting in a socket, 1

in the bottom of the box I, while its lower end is provided with a pin which fitsin thcgroovc j of cam J.

' The cutters L are attached to their respective shafts in a peculiar manner. (Shown in Fig. 5.) The shaftis cylindrical at the bearings, but where the cutters are placed it is square in cross-section. Throughout the square part of the shaft two of its surfaces are provided with longitudinal grooves f. At the inner end of the square portion is placed a stationary collar,f". Each of the cutters L is pro vided with a centrally-located opening, L. This opening is rectangular, and has one dimension greater than the other to allow of an adjustment, to be presently described. One of the long edges ofthis opening is provided with serrations Z, which are similar in size and shape to the grooves f on the shaft. XVhen' the cut ters are slipped onto the shaft, the serrations Z engage with the grooves f, and allow the cutter to be placed either centrally or ecccntrically upon the shaft.

In setting the cutters the first one is placed against the collar f then a thimble, M, is slipped over the shaft, and then the next cutter, I is set, and so on. After the last cutter has been set the nut N is screwed on, clamping the whole in position.

The differentcutters vary considerably from each other in shape. The outermost cutter is circular, and is provided with a cutting-edge on its whole periphery. The innermost cutter is quite-an elongated ellipse. The intermediate cutters are ellipses of gradually-less S ening short diameter approaching that of the innermost cutter. In Fig. 4 a series of these cutters is illustrated. The cutting-edges gradually diminishin extent from the outer to the inner cutter in consequence of the gradual diminution of the peripheries of the cutters.

The mode of operation of the machine is as follows: The meat to be cut is placed on the block D and the shafts F and F started, rotating in opposite directions. This rotates the cutters which cut the meat on the block D. The action of the cutter is twofold: first, the cutter moving more rapidly than the block produces a draw out similar to that produced by a knife. in the hand; and, secondly, the el- IOO liptical shape of the knife gives it also a strikwhole block.

ing cut. A belt passing around the pulleys- A and E imparts motion to the shaft e. The shaft 6 causes a slow rotation of the block D through the beveled gear E and rack 0. Each rotation of the shaft 0 also produces a reciprocating movement of the lever K, which in turn 'moves the shafts F F and their cutters back and forth. The combination of these movements produces a very thorough cutting of the meat. As the block D rotates its inner edge travels more slowly than the outer edge; hence if the inner cutter did the same amount. of work asthe outer cutter it would cut the meat much finer than the outer one in the same time.

The peculiar shape of my cutters enables me to regulate the amount of work each is to do. Thus I am enabled to adapt each cutter to the particular amount of work to be done at the particular part ofthe block on which it works. In this way I secure uniform cutting over the Another advantage of my form of knife is this: When the cutting-edge wears off, thekni fe may be set out by means of the central adj ustment, and if eccentrically adjusted one end may be set out when the other gets dull. The knives may also be reversed face for face, bringing the brunt of the cutting on opposite ends of each cutting-edge. The special advantage of the machine/lies in the character of the out which the knives make. A draw cut in machines Qf this class has been long desired, and this my machine makes to perfection. The striking out is also a special advantage.

Anotherimportant advantage of mymachine is the reciprocation. of the cuttershafts. This to-and-fro motion of the cutters prevents the necessity of turningthe meat on the blockby hand during the process of cutting.

I am aware that heretofore means have been employed to imparta reciprocating movement to the cutter'shaft of a meat-cutter, and that a cam on the cutter-shaft has been employed for this purpose, and therefore I do not claim the same; but

What I claim as new and of my invention, and desire to secure by Letters Patent, is-

1. In a meat-cutter, the combination-of a distant from the cutting-block, substantially as.

and for the purposes specified.

3. The combination of the shaft F, having grooves f,and the adjustable cutter L, having rectangular openingL, provided with serra tions Z on its longer side. substantially as and for the purposes specified.

4. In a; meat-cutter, the combination of the shaft 0, having cam J,provided with groovej,

lever K, box I, and shafts F F, collarsf, and cutters L, substantially as and for the purposes, set forth.

GRANVILLE I-I. STALLMAN.

\Vitn es'ses:

G. K. RANKIN, CHAS. F. RANKIN. 

